Stefan - On average at BY3A (110 miles East of Bejing near Tinjin) and 9V1LF Singapore HGA22 was 7-10dB stronger than DCF39. WHich to my mind is a little more than could be expected by just a 480 Kms few hundred Kms path length difference. I was using the SDR IQ so pretty confident about the dbs...
The path to Singapore from Eu was pretty good on a day to day basis and much less affected by, as you say, the more Northern Oval approaching route to NE China.
It doesnt need much of a Northerly track to hit a lot of path attenuation very quickly when the Oval decends to more temperate latitudes. Its worse sometimes for the Transpolar to here where Gt Circle/Rhum paths that have to cross and track along/under/over the Oval twice - once your side and again once it gets over here...and I have a couple of local mountain ranges which upset things slightly..
Cheers Laurence (seems to be my day for emails) KL1X
Date: Wed, 12 Sep 2012 01:21:25 +0200
From:
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[email protected]Subject: Re: LF: UA0SNV
Am 12.09.2012 00:50, schrieb Graham:
Interesting
JA , only a few more CM on the map :- )
Another important factor (!): The path to Japan goes much higher and
closer to the auroral oval than the path to UA0. So the dependency on
solar activity is much higher. In tests with JA8SCD who runs his
grabber showing a daily DCF plot, this was daily confirmed. The SNR of
HGA22 was much loss affected by solar activity that the DCF39 SNR.
http://icas.to/argo/eu.htm
BTW the path to Japan starts to open. Worth to try, but not in OP32 for
now...
73, Stefan/DK7FC
